Using screen edges to close dashboard

Hi!

I am using KDE 4.11 (on a Ubuntu 13.10) machine. I am missing one feature since my last update:

I use screen edges to open the dashboard (which is a real killer feature in my mind); however, since the last update of KDE it seems not to be possible any more to close the dashboard by moving the mouse to a screen edge, too. One has always to click on a special widget (at the top of the dashboard) to get back to the desktop. This is slow and annoying. Does anybody have an idea how to get the old behaviour back?